diff options
| author | Alexey Kardashevskiy <aik@ozlabs.ru> | 2012-08-07 16:10:37 +0000 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2012-08-15 19:43:16 +0200 |
| commit | 0ee2c058a3fe485b8901186179102e251a33d082 (patch) | |
| tree | acc8e7fb4ba8901e8d5aa3868aa4a88cc123082d /hw/spapr.c | |
| parent | a2950fb6e795e3e10fed35d347a7aa28a44be2ff (diff) | |
pseries: Add PCI MSI/MSI-X support
This patch implements MSI and MSI-X support for the pseries PCI host
bridge. To do this it adds:
* A "config_space_address to msi_table" map, since the MSI RTAS calls
take a PCI config space address as an identifier.
* A MSIX memory region to catch msi_notify()/msix_notiry() from
virtio-pci and pass them to the guest via qemu_irq_pulse().
* RTAS call "ibm,change-msi" which sets up MSI vectors for a
device. Note that this call may configure and return lesser number of
vectors than requested.
* RTAS call "ibm,query-interrupt-source-number" which translates MSI
vector to interrupt controller (XICS) IRQ number.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
[agraf: fix error case ndev < 0]
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'hw/spapr.c')
| -rw-r--r-- | hw/spapr.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/hw/spapr.c b/hw/spapr.c index afbdbc586e..5178721d49 100644 --- a/hw/spapr.c +++ b/hw/spapr.c @@ -41,6 +41,7 @@ #include "hw/spapr_vio.h" #include "hw/spapr_pci.h" #include "hw/xics.h" +#include "hw/msi.h" #include "kvm.h" #include "kvm_ppc.h" @@ -79,6 +80,7 @@ #define SPAPR_PCI_MEM_WIN_ADDR (0x10000000000ULL + 0xA0000000) #define SPAPR_PCI_MEM_WIN_SIZE 0x20000000 #define SPAPR_PCI_IO_WIN_ADDR (0x10000000000ULL + 0x80000000) +#define SPAPR_PCI_MSI_WIN_ADDR (0x10000000000ULL + 0x90000000) #define PHANDLE_XICP 0x00001111 @@ -619,6 +621,8 @@ static void ppc_spapr_init(ram_addr_t ram_size, long pteg_shift = 17; char *filename; + msi_supported = true; + spapr = g_malloc0(sizeof(*spapr)); QLIST_INIT(&spapr->phbs); @@ -735,7 +739,8 @@ static void ppc_spapr_init(ram_addr_t ram_size, spapr_create_phb(spapr, "pci", SPAPR_PCI_BUID, SPAPR_PCI_MEM_WIN_ADDR, SPAPR_PCI_MEM_WIN_SIZE, - SPAPR_PCI_IO_WIN_ADDR); + SPAPR_PCI_IO_WIN_ADDR, + SPAPR_PCI_MSI_WIN_ADDR); for (i = 0; i < nb_nics; i++) { NICInfo *nd = &nd_table[i]; |